204519400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{32987}}^1$

素因数の和:33034

約数の個数: 48

約数和(自身を含む): 490861440

約数和(自身を除く): 286342040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 32987, 65974, 131948, 164935, 263896, 329870, 659740, 824675, 1022597, 1319480, 1649350, 2045194, 3298700, 4090388, 5112985, 6597400, 8180776, 10225970, 20451940, 25564925, 40903880, 51129850, 102259700, 204519400]

約数ペア:

[(1, 204519400), (2, 102259700), (4, 51129850), (5, 40903880), (8, 25564925), (10, 20451940), (20, 10225970), (25, 8180776), (31, 6597400), (40, 5112985), (50, 4090388), (62, 3298700), (100, 2045194), (124, 1649350), (155, 1319480), (200, 1022597), (248, 824675), (310, 659740), (620, 329870), (775, 263896), (1240, 164935), (1550, 131948), (3100, 65974), (6200, 32987)]